UNISONIC TECHNOLOGIES CO., LTD

U74HC165

CMOS IC

www.unisonic.com.tw

1 of 7

Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R502-A44.B

8-BIT PARALLEL-LOAD SHIFT

REGISTER



DESCRIPTION

The U74HC165 is an 8-bit parallel-load shift register that,

Parallel-in access to each stage is provided by eight individual

direct data (A-H) inputs that are enabled by a low level at

shift/load (SH/ LD ) input. The U74HC165 also features a

Q)

output.

Clocking is accomplished by a low-to-high transition of the

clock (CLK) input while SH/ LD is held high and CLK INH is held

low. The functions of CLK and CLK INH are interchangeable.

Since a low CLK and a low-to-high transition of CLK INH also

accomplish clocking, CLK INH should be changed to the high

level only while CLK is high. Parallel loading is inhibited when

SH/ LD is held high. While SH/ LD is low, the parallel inputs to

the register are enabled independently of the levels of the CLK,

CLK INH, or serial (SER) inputs.



FEATURES

* Complementary Outputs

* Direct Overriding Load (Data) Inputs

* Gated Clock Inputs

* Parallel-to-Serial Data Conversion

SOP-16

TSSOP-16



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

U74HC165L-S16-T

U74HC165G-S16-T

SOP-16

Tube

U74HC165L-S16-R

U74HC165G-S16-R

SOP-16

Tape Reel

U74HC165L-P16-T

U74HC165G-P16-T

TSSOP-16

Tube

U74HC165L-P16-R

U74HC165G-P16-R

TSSOP-16

Tape Reel